Alexis maraisj of st



ALEXIS MARAIS, or

sr. LOUIS, MISSOURI, AssIeNOR To .IIIMsELr AND JOHN OBRIIIN, or SAMEPLACE.

Letters Petegem. 105,468, metz .my 19, 1ero.

PARLORLROULETTB.

The Schedule referred to in these Letters Patent, an"making part ot thesame Teelt 'whom it 'Indy concern: V

Be it known thatI, ALEXIS MARAIS, of St. Louis, in the county of St.Louis-and State of'Missonl-i, have Inadeja certain new and usefulImproved Parlor-Roulette;l and Ido hereby declare that the following isafull and true description thereof, reference being had to theaccompanying drawingand to the letters of reference markedthereon.

This invent-ion has for its object the formation of a toy in which'bothold` and young may engage' for home amusement; and l The natnrethereot'consists in a circular metallic casing with conoidal rhn and serratededges, when put infmotion revolving upon acircnlai plate within thesame, and causinga marble or ivory ball within the space formed bysnillplate and casing to indicate the lnunbersmarked upon the face oftheconoidal rim, as soon as the revolution of the parts ceases.

To enable those herein skilled to make and use my saidinvention, I willnow more fully describe thesame, referring tothe accompauyngf Figure 1as afront elevation, and to,

Figure 2 as a sectionalfelevation.

I construct a rotating disk, A, (usually Oi' malleable iron,) having acircular flange or rim, a, and j onrnal, a.

vAbout sad disk circumferentially is, furthermore, a metal rim, B. ,p 1

Within the samethere isV placeda conoidal rim, (3,-,V the'inner edge ofwhich hakingrounding serrations, c, as shown in the figures.

To the inner face of said conoidal rim C, I attach, in any'propermanner, `the rubberor cork rests c', upon which the disk A, by itsflange a, rests, and is retained in its proper position, when attachedgothe rim B, by means of the hand-screws b'.` v .Y

The circular-plate D is placed within said flange a of the rotatingdisk, and, by means of its screw-pivot d passing through the journal a',saiddisk A is fitted to revolvearound theI same.

Upon the face 4of said plate D a suitable picture or otherornamental-design may be attached, as preferred. l y

The conoidal rim C has varionsnun'ibers surrounding its face, such as2500, 30, 80, &c., as shown in Said rim C, and the depth to which itssel-rations are cut, should correspond lin s'uch wise that a marble orsmall ball shallV always be supported in said serrated edges, howeverfast the same may be revolved.

A glass covering, E, incases both said rim and plate D', thus retainingthe marble within the same.

By means of the screw-pvotdthe operative parts ot' my said device areproperly supported and connected to the journal ot' a baseer standard ofsuitable ornamental design. f,

' 'it is evident, therefore, that, when the operator, by

means of the hand-screws b', causes the metallic casning to revolvearound the plate D, as soon as the revolution ceases, the marble or ballwithin the same drops'in the nitehes of some of the serrated edges, thusindicating some number.

Having th'us fully described my said invention.

The rotating disk A, metal rim B, conoidal rim C,

marked with numbers, and having scrl-ations @when combined and Amade torevolve aroiind a plate, D, having screw-pivot d,- to operatesubstantially as and for the purpose set forth. v

In testimony of said invention Ihave hereuntoset my hand in presenceof-f- A ALEXIS MARAIS.

Witnesses:

WILLIAM W. HIIR'IIIEL,

